tree efbc85f3a13ffce6dbc1df343a02592400fd03a0
parent 9aa7f440a807b20d6badc5cade8cc129d725a80e
author zandobersek@gmail.com <zandobersek@gmail.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1524729259 +0000
committer zandobersek@gmail.com <zandobersek@gmail.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1524729259 +0000

[GTK][WPE] Initial ASYNC_SCROLLING support
https://bugs.webkit.org/show_bug.cgi?id=184961

Reviewed by Carlos Garcia Campos.

.:

* Source/cmake/OptionsGTK.cmake: Enable ASYNC_SCROLLING as a private option.
* Source/cmake/OptionsWPE.cmake: Ditto.

Source/WebCore:

Add CoordinatedGraphics-specific code that will be required for async
scrolling support. The ScrollingCoordinatorCoordinatedGraphics and
ScrollingTreeCoordinatedGraphics classes are mostly complete already,
but the new ScrollingTreeNode-inheriting classes will need further
work that will have to be done in parallel with other improvements
planned for the CoordinatedGraphics subsystem.

While the build-time flag is enabled, the feature is still not enabled
at runtime due to being marked as unsupported by the DrawingArea
implementation in the WebKit layer. It would also not work yet if it
were enabled due to the before-mentioned pending changes.

Various build fixes that address non-Cocoa usage of ASYNC_SCROLLING
code are included.

* Sources.txt: Add AsyncScrollingCoordinator.cpp to build.
* SourcesCocoa.txt:
* SourcesGTK.txt: Add new files to build.
* SourcesWPE.txt: Ditto.
* page/scrolling/AsyncScrollingCoordinator.cpp:
Guard setStateScrollingNodeSnapOffsetsAsFloat() with CSS_SCROLL_SNAP.
* page/scrolling/ScrollingTree.h:
* page/scrolling/ThreadedScrollingTree.cpp:
* page/scrolling/ThreadedScrollingTree.h:
currentSnapPointIndicesDidChange() method is only invoked in
Cocoa-specific code, and its implementation calls Cocoa-specific method
on the AsyncScrollingCoordinator class.
* page/scrolling/coordinatedgraphics/ScrollingCoordinatorCoordinatedGraphics.cpp:
(WebCore::ScrollingCoordinator::create):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::ScrollingCoordinatorCoordinatedGraphics):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::~ScrollingCoordinatorCoordinatedGraphics):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::pageDestroyed):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::commitTreeStateIfNeeded):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::handleWheelEvent):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::scheduleTreeStateCommit):
(WebCore::ScrollingCoordinatorCoordinatedGraphics::commitTreeState):
* page/scrolling/coordinatedgraphics/ScrollingCoordinatorCoordinatedGraphics.h: Added.
* page/scrolling/coordinatedgraphics/ScrollingTreeCoordinatedGraphics.cpp: Added.
(WebCore::ScrollingTreeCoordinatedGraphics::create):
(WebCore::ScrollingTreeCoordinatedGraphics::ScrollingTreeCoordinatedGraphics):
(WebCore::ScrollingTreeCoordinatedGraphics::createScrollingTreeNode):
* page/scrolling/coordinatedgraphics/ScrollingTreeCoordinatedGraphics.h: Added.
* page/scrolling/coordinatedgraphics/ScrollingTreeFixedNode.cpp: Added.
(WebCore::ScrollingTreeFixedNode::create):
(WebCore::ScrollingTreeFixedNode::ScrollingTreeFixedNode):
(WebCore::ScrollingTreeFixedNode::~ScrollingTreeFixedNode):
(WebCore::ScrollingTreeFixedNode::commitStateBeforeChildren):
(WebCore::ScrollingTreeFixedNode::updateLayersAfterAncestorChange):
* page/scrolling/coordinatedgraphics/ScrollingTreeFixedNode.h: Added.
* page/scrolling/coordinatedgraphics/ScrollingTreeFrameScrollingNodeCoordinatedGraphics.cpp: Added.
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::create):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::ScrollingTreeFrameScrollingNodeCoordinatedGraphics):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::handleWheelEvent):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::scrollPosition const):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::setScrollPosition):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::setScrollPositionWithoutContentEdgeConstraints):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::setScrollLayerPosition):
(WebCore::ScrollingTreeFrameScrollingNodeCoordinatedGraphics::updateLayersAfterViewportChange):
* page/scrolling/coordinatedgraphics/ScrollingTreeFrameScrollingNodeCoordinatedGraphics.h: Added.
* page/scrolling/coordinatedgraphics/ScrollingTreeStickyNode.cpp: Added.
(WebCore::ScrollingTreeStickyNode::create):
(WebCore::ScrollingTreeStickyNode::ScrollingTreeStickyNode):
(WebCore::ScrollingTreeStickyNode::~ScrollingTreeStickyNode):
(WebCore::ScrollingTreeStickyNode::commitStateBeforeChildren):
(WebCore::ScrollingTreeStickyNode::updateLayersAfterAncestorChange):
* page/scrolling/coordinatedgraphics/ScrollingTreeStickyNode.h: Added.
* platform/PlatformWheelEvent.h: Enable PlatformWheelEventPhase code
for WPE. Guard latching-specific methods under ASYNC_SCROLLING.
* platform/TextureMapper.cmake: Two build targets have been moved to
SourcesGTK.txt and SourcesWPE.txt.

Source/WebKit:

Guard RemoteScrollingCoordinator and RemoteScrollingCoordinatorProxy
usage in WebChromeClient and WebPageProxy, respectively, with
PLATFORM(COCOA) in addition to the ASYNC_SCROLLING guards.

Despite enabling the code at build-time, the feature (as intended) is
not yet used because of the DrawingArea rejection in the WebPage
constructor.

* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::initializeWebPage):
(WebKit::WebPageProxy::handleWheelEvent):
(WebKit::WebPageProxy::updateTouchEventTracking):
* UIProcess/WebPageProxy.h:
* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::createScrollingCoordinator const):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@231043 268f45cc-cd09-0410-ab3c-d52691b4dbfc